MCI Telecommunications Corporation No description specified. 1-2 (2 Records) Documents MCI Rialto To El Paso Fiber Optics Project: Intensive Cultural Resource Survey, San Bernardino and Riverside Counties, California (1988) Negative Archaeological Survey Report For Proposed Installation of a Fiber Optic Cable 05-SBA-166 Pm 0.01 To Pm 1.6 Santa Barbara, California (1989)